.box {
  height: 100%;
//   background: #ccc;
  background: #001529;
  .top {
    height: 33.3%;
    // background: pink;
    display: flex;
    justify-content: space-between;
    div {
      width: 400px;
    //   background: #ccc;
    }
  }
  .mid {
    height: 33.3%;
    // background: rgb(255, 251, 192);
    display: flex;
    justify-content: space-between;
    div {
      width: 400px;
    //   background: #ccc;
    }
  }
  .fot {
    height: 33.3%;
    // background: rgb(192, 237, 255);
    display: flex;
    justify-content: space-between;
    div {
      width: 400px;
    //   background: #ccc;
    }
  }
}
